Arpezine142-63-2100 % similar Piperazine110-85-067 % similar Aziridine151-56-467 % similar Cyclen294-90-667 % similar 1,4,7-Triazacyclononane4730-54-567 % similar Polyethylenimine9002-98-667 % similar Cyclen tetrahydrochloride10045-25-750 % similar Piperazine hydrochloride142-64-350 % similar 1,4,8,12-Tetraazacyclopentadecane15439-16-450 % similar Piperazine, phosphate, hydrate (1:1:1)18534-18-450 % similar Cyclam295-37-450 % similar 1,4-Diazacycloheptane505-66-850 % similar 1,4,7-Triazacyclononane trihydrochloride58966-93-150 % similar Spermine dihydrate403982-64-944 % similar Ethylenediamine-ethylenimine copolymer25987-06-843 % similar Pyrrolidine123-75-142 % similar Azetidine503-29-742 % similar Imidazolidine504-74-542 % similar Triethylenetetramine112-24-340 % similar Tetraethylenepentamine112-57-240 % similar